this bug report (snippet):
> From: "Christos Karayiannis" <christos@kar.forthnet.gr>
> To: <bugs@minix3.org>
> Date: Tue, 20 Dec 2005 16:22:49 +0200
> Subject: bootimage.c
>
> Hi,
>
> at exec_image() of bootimage.c the a_bss and a_stack are printed with
> some values and then, if the K_CLAIM flag is set, they become zero. But
> this is then wrong information.
so the list of programs in the image and their sizes can be seen before the
kernel starts filling the screen.
Added some formatting fixes in installboot and boot monitor itself,
some of the segments were larger than the formatting allowed.